17
17
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20
#include <drizzled/server_includes.h>
22
#include <drizzled/functions/time/year.h>
22
#include <drizzled/temporal.h>
23
#include <drizzled/error.h>
24
#include <drizzled/function/time/year.h>
24
29
int64_t Item_func_year::val_int()
28
(void) get_arg0_date(<ime, TIME_FUZZY_DATE);
29
return (int64_t) ltime.year;
32
/* information about this Item tree monotonicity
35
Item_func_year::get_monotonicity_info()
38
Get information about monotonicity of the function represented by this item
42
See enum_monotonicity_info.
45
enum_monotonicity_info Item_func_year::get_monotonicity_info() const
47
if (args[0]->type() == Item::FIELD_ITEM &&
48
(args[0]->field_type() == DRIZZLE_TYPE_DATE ||
49
args[0]->field_type() == DRIZZLE_TYPE_DATETIME))
50
return MONOTONIC_INCREASING;
33
if (args[0]->is_null())
35
/* For NULL argument, we return a NULL result */
40
/* Grab the first argument as a DateTime object */
42
Item_result arg0_result_type= args[0]->result_type();
44
switch (arg0_result_type)
48
* For doubles supplied, interpret the arg as a string,
49
* so intentionally fall-through here...
50
* This allows us to accept double parameters like
51
* 19971231235959.01 and interpret it the way MySQL does:
52
* as a TIMESTAMP-like thing with a microsecond component.
53
* Ugh, but need to keep backwards-compat.
57
char buff[DRIZZLE_MAX_LENGTH_DATETIME_AS_STRING];
58
String tmp(buff,sizeof(buff), &my_charset_utf8_bin);
59
String *res= args[0]->val_str(&tmp);
61
if (res && (res != &tmp))
66
if (! temporal.from_string(tmp.c_ptr(), tmp.length()))
69
* Could not interpret the function argument as a temporal value,
70
* so throw an error and return 0
72
my_error(ER_INVALID_DATETIME_VALUE, MYF(0), tmp.c_ptr());
78
if (temporal.from_int64_t(args[0]->val_int()))
80
/* Intentionally fall-through on invalid conversion from integer */
84
* Could not interpret the function argument as a temporal value,
85
* so throw an error and return 0
88
char buff[DRIZZLE_MAX_LENGTH_DATETIME_AS_STRING];
89
String tmp(buff,sizeof(buff), &my_charset_utf8_bin);
92
res= args[0]->val_str(&tmp);
94
if (res && (res != &tmp))
99
my_error(ER_INVALID_DATETIME_VALUE, MYF(0), tmp.c_ptr());
103
return (int64_t) temporal.years();
54
106
int64_t Item_func_year::val_int_endpoint(bool left_endp, bool *incl_endp)
56
108
assert(fixed == 1);
58
if (get_arg0_date(<ime, TIME_FUZZY_DATE))
110
if (args[0]->is_null())
60
112
/* got NULL, leave the incl_endp intact */
116
/* Grab the first argument as a DateTime object */
119
if (! temporal.from_int64_t(args[0]->val_int()))
121
/* got bad DateTime, leave the incl_endp intact */
65
126
Handle the special but practically useful case of datetime values that
66
127
point to year bound ("strictly less" comparison stays intact) :